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Passive load-deformation properties of human temporal muscle.
Journal of Biomechanics ( IF 2.4 ) Pub Date : 2020-05-11 , DOI: 10.1016/j.jbiomech.2020.109829
J Zwirner 1 , B Ondruschka 2 , M Scholze 3 , N Hammer 4
Affiliation  

The passive load-deformation properties of the human temporal muscle applicable to computer simulations of the human head or the comparison of the temporal muscle to other graft materials are unexplored to date and it is unclear, if these properties depend on age, sex, post-mortem interval or body side. Eighty-eight fresh temporal muscle samples from 69 human cadavers (age range 4 months – 94 years) were investigated in a quasi-static tensile setup. For comparative reasons, 20 age-matched human temporal muscle fascia and scalp samples were tested in the same manner as the temporal muscle. Human temporal muscle showed an elastic modulus of 1.58 ± 0.64 MPa, an ultimate tensile strength of 0.26 ± 0.11 MPa and a strain at maximum force of 26.21 ± 12.48%. These parameters were independent of sex (p > 0.88), side (p > 0.92) and post-mortem interval (p > 0.09). All passive load-deformation parameters of the human temporal muscle differed from temporal muscle fascia and scalp except for the strain at maximum force of the temporal muscle and scalp. Significantly different load-deformation properties of the human temporal muscle from temporal muscle fascia and scalp indicate the need for a separate simulation of these soft tissue layers in computational head models to reflect lifelike conditions. Contrary to other tissues such as scalp or temporal muscle fascia the biomechanical temporal muscle properties in head models may not require adjustments for sex, side and age based on the here-presented findings.



中文翻译:

人类颞肌的被动载荷变形特性。

迄今为止,尚未开发适用于人头的计算机模拟或将颞肌与其他移植物材料进行比较的人类颞肌的被动载荷变形特性,目前尚不清楚,这些特性是否取决于年龄,性别,验尸间隔或身体一侧。在准静态拉伸装置中,对来自69位人体尸体(年龄范围4个月– 94岁)的88个新鲜颞肌样本进行了调查。出于比较原因,以与颞肌相同的方式测试了20个年龄匹配的人颞肌筋膜和头皮样品。人颞肌的弹性模量为1.58±0.64 MPa,极限抗拉强度为0.26±0.11 MPa,最大力时的应变为26.21±12.48%。这些参数与性别(p> 0.88),侧面(p> 0)无关。92)和验尸间隔(p> 0.09)。人类颞肌的所有被动载荷-变形参数不同于颞肌筋膜和头皮,除了在颞肌和头皮的最大力下的应变。人类颞肌与颞肌筋膜和头皮的负荷变形特性显着不同,这表明需要在计算头模型中对这些软组织层进行单独仿真以反映逼真的状况。与其他组织(例如头皮或颞肌筋膜)相反,根据此处显示的发现,头部模型中的生物力学颞肌特性可能不需要调整性别,侧面和年龄。人类颞肌的所有被动载荷-变形参数不同于颞肌筋膜和头皮,除了在颞肌和头皮的最大力下的应变。人类颞肌与颞肌筋膜和头皮的负荷变形特性显着不同,这表明需要在计算头模型中对这些软组织层进行单独仿真以反映逼真的状况。与其他组织(例如头皮或颞肌筋膜)相反,根据此处显示的发现,头部模型中的生物力学颞肌特性可能不需要调整性别,侧面和年龄。人类颞肌的所有被动载荷-变形参数不同于颞肌筋膜和头皮,除了在颞肌和头皮的最大力下的应变。人类颞肌与颞肌筋膜和头皮的负荷变形特性显着不同,这表明需要在计算头模型中对这些软组织层进行单独仿真以反映逼真的状况。与其他组织(例如头皮或颞肌筋膜)相反,根据此处显示的发现,头部模型中的生物力学颞肌特性可能不需要调整性别,侧面和年龄。人类颞肌与颞肌筋膜和头皮的负荷变形特性显着不同,这表明需要在计算头模型中对这些软组织层进行单独仿真以反映逼真的状况。与其他组织(例如头皮或颞肌筋膜)相反,根据此处显示的发现,头部模型中的生物力学颞肌特性可能不需要调整性别,侧面和年龄。人类颞肌与颞肌筋膜和头皮的负荷变形特性显着不同,这表明需要在计算头模型中对这些软组织层进行单独仿真以反映逼真的状况。与其他组织(例如头皮或颞肌筋膜)相反,根据此处显示的发现,头部模型中的生物力学颞肌特性可能不需要调整性别,侧面和年龄。

更新日期:2020-05-11
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